Singlespeed & Fixed Gear"I still feel that variable gears are only for people over forty-five.
Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

title says it all but i need a little help. Every time i back peddle with medium resistance. my cod slips and loosens. I have taken it off and cleaned it put it back on, tightened excessively put the looking ring on tighten that to hell and yet it still slips. Are there any tricks to getting this thing from slipping? How are you suppose to stidd stop without this thing undoing itself

Maybe, maybe not. You just might not be cranking it down as tight as you think you are. If you don't want to rotafix, put your front tire up against a wall with your drive side crank arm forward and put all your weight on the pedal. Bounce a couple of times to make sure you've really got it. Then tighten your lockring.

Yeah, more than likely it isn't tight enough even when you think it is. I've tightened the bejesus out of a cog with a chainwhip to where I was convinced it couldn't possibly go any tighter, only to have it slip forward once I mashed on the pedals. Just to re-emphasize what's already been said, tighten with your legs or rotafix, then tighten the cog. Sounds like you've already got the tightening with your legs thing down pat.

Can somebody who's good at graphic design put together a nice infographic for what to do if your cog is slipping? I swear this gets asked every day and we have to type it out in multiple posts every time.

I have nothing against rota-fixing (I used to do it when I had a bike whose BB shell allowed me to), but where does this idea that chain-whips don't work come from? The park tool chain-whip I have is about the same length as the diameter of a 700c wheel, so the leverage is the same.